68540940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1723}}^1$

素因数の和:1768

約数の個数: 144

約数和(自身を含む): 237208608

約数和(自身を除く): 168667668

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, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1723, 1989, 2210, 2340, 2652, 3060, 3315, 3446, 3978, 4420, 5169, 6630, 6892, 7956, 8615, 9945, 10338, 13260, 15507, 17230, 19890, 20676, 22399, 25845, 29291, 31014, 34460, 39780, 44798, 51690, 58582, 62028, 67197, 77535, 87873, 89596, 103380, 111995, 117164, 134394, 146455, 155070, 175746, 201591, 223990, 263619, 268788, 292910, 310140, 335985, 351492, 380783, 403182, 439365, 447980, 527238, 585820, 671970, 761566, 806364, 878730, 1007955, 1054476, 1142349, 1318095, 1343940, 1523132, 1757460, 1903915, 2015910, 2284698, 2636190, 3427047, 3807830, 4031820, 4569396, 5272380, 5711745, 6854094, 7615660, 11423490, 13708188, 17135235, 22846980, 34270470, 68540940]

約数ペア:

[(1, 68540940), (2, 34270470), (3, 22846980), (4, 17135235), (5, 13708188), (6, 11423490), (9, 7615660), (10, 6854094), (12, 5711745), (13, 5272380), (15, 4569396), (17, 4031820), (18, 3807830), (20, 3427047), (26, 2636190), (30, 2284698), (34, 2015910), (36, 1903915), (39, 1757460), (45, 1523132), (51, 1343940), (52, 1318095), (60, 1142349), (65, 1054476), (68, 1007955), (78, 878730), (85, 806364), (90, 761566), (102, 671970), (117, 585820), (130, 527238), (153, 447980), (156, 439365), (170, 403182), (180, 380783), (195, 351492), (204, 335985), (221, 310140), (234, 292910), (255, 268788), (260, 263619), (306, 223990), (340, 201591), (390, 175746), (442, 155070), (468, 146455), (510, 134394), (585, 117164), (612, 111995), (663, 103380), (765, 89596), (780, 87873), (884, 77535), (1020, 67197), (1105, 62028), (1170, 58582), (1326, 51690), (1530, 44798), (1723, 39780), (1989, 34460), (2210, 31014), (2340, 29291), (2652, 25845), (3060, 22399), (3315, 20676), (3446, 19890), (3978, 17230), (4420, 15507), (5169, 13260), (6630, 10338), (6892, 9945), (7956, 8615)]