18509940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 62270208

約数和(自身を除く): 43760268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 23, 30, 34, 36, 45, 46, 51, 60, 68, 69, 85, 90, 92, 102, 115, 138, 153, 170, 180, 204, 207, 230, 255, 263, 276, 306, 340, 345, 391, 414, 460, 510, 526, 612, 690, 765, 782, 789, 828, 1020, 1035, 1052, 1173, 1315, 1380, 1530, 1564, 1578, 1955, 2070, 2346, 2367, 2630, 3060, 3156, 3519, 3910, 3945, 4140, 4471, 4692, 4734, 5260, 5865, 6049, 7038, 7820, 7890, 8942, 9468, 11730, 11835, 12098, 13413, 14076, 15780, 17595, 17884, 18147, 22355, 23460, 23670, 24196, 26826, 30245, 35190, 36294, 40239, 44710, 47340, 53652, 54441, 60490, 67065, 70380, 72588, 80478, 89420, 90735, 102833, 108882, 120980, 134130, 160956, 181470, 201195, 205666, 217764, 268260, 272205, 308499, 362940, 402390, 411332, 514165, 544410, 616998, 804780, 925497, 1028330, 1088820, 1233996, 1542495, 1850994, 2056660, 3084990, 3701988, 4627485, 6169980, 9254970, 18509940]

約数ペア:

[(1, 18509940), (2, 9254970), (3, 6169980), (4, 4627485), (5, 3701988), (6, 3084990), (9, 2056660), (10, 1850994), (12, 1542495), (15, 1233996), (17, 1088820), (18, 1028330), (20, 925497), (23, 804780), (30, 616998), (34, 544410), (36, 514165), (45, 411332), (46, 402390), (51, 362940), (60, 308499), (68, 272205), (69, 268260), (85, 217764), (90, 205666), (92, 201195), (102, 181470), (115, 160956), (138, 134130), (153, 120980), (170, 108882), (180, 102833), (204, 90735), (207, 89420), (230, 80478), (255, 72588), (263, 70380), (276, 67065), (306, 60490), (340, 54441), (345, 53652), (391, 47340), (414, 44710), (460, 40239), (510, 36294), (526, 35190), (612, 30245), (690, 26826), (765, 24196), (782, 23670), (789, 23460), (828, 22355), (1020, 18147), (1035, 17884), (1052, 17595), (1173, 15780), (1315, 14076), (1380, 13413), (1530, 12098), (1564, 11835), (1578, 11730), (1955, 9468), (2070, 8942), (2346, 7890), (2367, 7820), (2630, 7038), (3060, 6049), (3156, 5865), (3519, 5260), (3910, 4734), (3945, 4692), (4140, 4471)]