217715940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:479

約数の個数: 216

約数和(自身を含む): 758977128

約数和(自身を除く): 541261188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 169, 170, 180, 195, 204, 221, 234, 255, 260, 306, 338, 340, 390, 421, 442, 468, 507, 510, 585, 612, 663, 676, 765, 780, 842, 845, 884, 1014, 1020, 1105, 1170, 1263, 1326, 1521, 1530, 1684, 1690, 1989, 2028, 2105, 2210, 2340, 2526, 2535, 2652, 2873, 3042, 3060, 3315, 3380, 3789, 3978, 4210, 4420, 5052, 5070, 5473, 5746, 6084, 6315, 6630, 7157, 7578, 7605, 7956, 8420, 8619, 9945, 10140, 10946, 11492, 12630, 13260, 14314, 14365, 15156, 15210, 16419, 17238, 18945, 19890, 21471, 21892, 25260, 25857, 27365, 28628, 28730, 30420, 32838, 34476, 35785, 37890, 39780, 42942, 43095, 49257, 51714, 54730, 57460, 64413, 65676, 71149, 71570, 75780, 82095, 85884, 86190, 93041, 98514, 103428, 107355, 109460, 128826, 129285, 142298, 143140, 164190, 172380, 186082, 197028, 213447, 214710, 246285, 257652, 258570, 279123, 284596, 322065, 328380, 355745, 372164, 426894, 429420, 465205, 492570, 517140, 558246, 640341, 644130, 711490, 837369, 853788, 930410, 985140, 1067235, 1116492, 1209533, 1280682, 1288260, 1395615, 1422980, 1674738, 1860820, 2134470, 2419066, 2561364, 2791230, 3201705, 3349476, 3628599, 4186845, 4268940, 4838132, 5582460, 6047665, 6403410, 7257198, 8373690, 10885797, 12095330, 12806820, 14514396, 16747380, 18142995, 21771594, 24190660, 36285990, 43543188, 54428985, 72571980, 108857970, 217715940]

約数ペア:

[(1, 217715940), (2, 108857970), (3, 72571980), (4, 54428985), (5, 43543188), (6, 36285990), (9, 24190660), (10, 21771594), (12, 18142995), (13, 16747380), (15, 14514396), (17, 12806820), (18, 12095330), (20, 10885797), (26, 8373690), (30, 7257198), (34, 6403410), (36, 6047665), (39, 5582460), (45, 4838132), (51, 4268940), (52, 4186845), (60, 3628599), (65, 3349476), (68, 3201705), (78, 2791230), (85, 2561364), (90, 2419066), (102, 2134470), (117, 1860820), (130, 1674738), (153, 1422980), (156, 1395615), (169, 1288260), (170, 1280682), (180, 1209533), (195, 1116492), (204, 1067235), (221, 985140), (234, 930410), (255, 853788), (260, 837369), (306, 711490), (338, 644130), (340, 640341), (390, 558246), (421, 517140), (442, 492570), (468, 465205), (507, 429420), (510, 426894), (585, 372164), (612, 355745), (663, 328380), (676, 322065), (765, 284596), (780, 279123), (842, 258570), (845, 257652), (884, 246285), (1014, 214710), (1020, 213447), (1105, 197028), (1170, 186082), (1263, 172380), (1326, 164190), (1521, 143140), (1530, 142298), (1684, 129285), (1690, 128826), (1989, 109460), (2028, 107355), (2105, 103428), (2210, 98514), (2340, 93041), (2526, 86190), (2535, 85884), (2652, 82095), (2873, 75780), (3042, 71570), (3060, 71149), (3315, 65676), (3380, 64413), (3789, 57460), (3978, 54730), (4210, 51714), (4420, 49257), (5052, 43095), (5070, 42942), (5473, 39780), (5746, 37890), (6084, 35785), (6315, 34476), (6630, 32838), (7157, 30420), (7578, 28730), (7605, 28628), (7956, 27365), (8420, 25857), (8619, 25260), (9945, 21892), (10140, 21471), (10946, 19890), (11492, 18945), (12630, 17238), (13260, 16419), (14314, 15210), (14365, 15156)]