15886780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:108

約数の個数: 144

約数和(自身を含む): 44241120

約数和(自身を除く): 28354340

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 29, 35, 43, 49, 52, 58, 65, 70, 86, 91, 98, 116, 130, 140, 145, 172, 182, 196, 203, 215, 245, 260, 290, 301, 364, 377, 406, 430, 455, 490, 559, 580, 602, 637, 754, 812, 860, 910, 980, 1015, 1118, 1204, 1247, 1274, 1421, 1505, 1508, 1820, 1885, 2030, 2107, 2236, 2494, 2548, 2639, 2795, 2842, 3010, 3185, 3770, 3913, 4060, 4214, 4988, 5278, 5590, 5684, 6020, 6235, 6370, 7105, 7540, 7826, 8428, 8729, 10535, 10556, 11180, 12470, 12740, 13195, 14210, 15652, 16211, 17458, 18473, 19565, 21070, 24940, 26390, 27391, 28420, 32422, 34916, 36946, 39130, 42140, 43645, 52780, 54782, 61103, 64844, 73892, 78260, 81055, 87290, 92365, 109564, 113477, 122206, 136955, 162110, 174580, 184730, 226954, 244412, 273910, 305515, 324220, 369460, 453908, 547820, 567385, 611030, 794339, 1134770, 1222060, 1588678, 2269540, 3177356, 3971695, 7943390, 15886780]

約数ペア:

[(1, 15886780), (2, 7943390), (4, 3971695), (5, 3177356), (7, 2269540), (10, 1588678), (13, 1222060), (14, 1134770), (20, 794339), (26, 611030), (28, 567385), (29, 547820), (35, 453908), (43, 369460), (49, 324220), (52, 305515), (58, 273910), (65, 244412), (70, 226954), (86, 184730), (91, 174580), (98, 162110), (116, 136955), (130, 122206), (140, 113477), (145, 109564), (172, 92365), (182, 87290), (196, 81055), (203, 78260), (215, 73892), (245, 64844), (260, 61103), (290, 54782), (301, 52780), (364, 43645), (377, 42140), (406, 39130), (430, 36946), (455, 34916), (490, 32422), (559, 28420), (580, 27391), (602, 26390), (637, 24940), (754, 21070), (812, 19565), (860, 18473), (910, 17458), (980, 16211), (1015, 15652), (1118, 14210), (1204, 13195), (1247, 12740), (1274, 12470), (1421, 11180), (1505, 10556), (1508, 10535), (1820, 8729), (1885, 8428), (2030, 7826), (2107, 7540), (2236, 7105), (2494, 6370), (2548, 6235), (2639, 6020), (2795, 5684), (2842, 5590), (3010, 5278), (3185, 4988), (3770, 4214), (3913, 4060)]