19718790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{233}}^1$

素因数の和:294

約数の個数: 128

約数和(自身を含む): 60383232

約数和(自身を除く): 40664442

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, 233, 273, 310, 390, 403, 434, 455, 465, 466, 546, 651, 699, 806, 910, 930, 1085, 1165, 1209, 1302, 1365, 1398, 1631, 2015, 2170, 2330, 2418, 2730, 2821, 3029, 3255, 3262, 3495, 4030, 4893, 5642, 6045, 6058, 6510, 6990, 7223, 8155, 8463, 9087, 9786, 12090, 14105, 14446, 15145, 16310, 16926, 18174, 21203, 21669, 24465, 28210, 30290, 36115, 42315, 42406, 43338, 45435, 48930, 50561, 63609, 72230, 84630, 90870, 93899, 101122, 106015, 108345, 127218, 151683, 187798, 212030, 216690, 252805, 281697, 303366, 318045, 469495, 505610, 563394, 636090, 657293, 758415, 938990, 1314586, 1408485, 1516830, 1971879, 2816970, 3286465, 3943758, 6572930, 9859395, 19718790]

約数ペア:

[(1, 19718790), (2, 9859395), (3, 6572930), (5, 3943758), (6, 3286465), (7, 2816970), (10, 1971879), (13, 1516830), (14, 1408485), (15, 1314586), (21, 938990), (26, 758415), (30, 657293), (31, 636090), (35, 563394), (39, 505610), (42, 469495), (62, 318045), (65, 303366), (70, 281697), (78, 252805), (91, 216690), (93, 212030), (105, 187798), (130, 151683), (155, 127218), (182, 108345), (186, 106015), (195, 101122), (210, 93899), (217, 90870), (233, 84630), (273, 72230), (310, 63609), (390, 50561), (403, 48930), (434, 45435), (455, 43338), (465, 42406), (466, 42315), (546, 36115), (651, 30290), (699, 28210), (806, 24465), (910, 21669), (930, 21203), (1085, 18174), (1165, 16926), (1209, 16310), (1302, 15145), (1365, 14446), (1398, 14105), (1631, 12090), (2015, 9786), (2170, 9087), (2330, 8463), (2418, 8155), (2730, 7223), (2821, 6990), (3029, 6510), (3255, 6058), (3262, 6045), (3495, 5642), (4030, 4893)]