18872490

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:284

約数の個数: 128

約数和(自身を含む): 57802752

約数和(自身を除く): 38930262

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 31, 35, 39, 42, 62, 65, 70, 78, 91, 93, 105, 130, 155, 182, 186, 195, 210, 217, 223, 273, 310, 390, 403, 434, 446, 455, 465, 546, 651, 669, 806, 910, 930, 1085, 1115, 1209, 1302, 1338, 1365, 1561, 2015, 2170, 2230, 2418, 2730, 2821, 2899, 3122, 3255, 3345, 4030, 4683, 5642, 5798, 6045, 6510, 6690, 6913, 7805, 8463, 8697, 9366, 12090, 13826, 14105, 14495, 15610, 16926, 17394, 20293, 20739, 23415, 28210, 28990, 34565, 40586, 41478, 42315, 43485, 46830, 48391, 60879, 69130, 84630, 86970, 89869, 96782, 101465, 103695, 121758, 145173, 179738, 202930, 207390, 241955, 269607, 290346, 304395, 449345, 483910, 539214, 608790, 629083, 725865, 898690, 1258166, 1348035, 1451730, 1887249, 2696070, 3145415, 3774498, 6290830, 9436245, 18872490]

約数ペア:

[(1, 18872490), (2, 9436245), (3, 6290830), (5, 3774498), (6, 3145415), (7, 2696070), (10, 1887249), (13, 1451730), (14, 1348035), (15, 1258166), (21, 898690), (26, 725865), (30, 629083), (31, 608790), (35, 539214), (39, 483910), (42, 449345), (62, 304395), (65, 290346), (70, 269607), (78, 241955), (91, 207390), (93, 202930), (105, 179738), (130, 145173), (155, 121758), (182, 103695), (186, 101465), (195, 96782), (210, 89869), (217, 86970), (223, 84630), (273, 69130), (310, 60879), (390, 48391), (403, 46830), (434, 43485), (446, 42315), (455, 41478), (465, 40586), (546, 34565), (651, 28990), (669, 28210), (806, 23415), (910, 20739), (930, 20293), (1085, 17394), (1115, 16926), (1209, 15610), (1302, 14495), (1338, 14105), (1365, 13826), (1561, 12090), (2015, 9366), (2170, 8697), (2230, 8463), (2418, 7805), (2730, 6913), (2821, 6690), (2899, 6510), (3122, 6045), (3255, 5798), (3345, 5642), (4030, 4683)]