15986390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 18850090

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 53, 62, 70, 106, 139, 155, 217, 265, 278, 310, 371, 434, 530, 695, 742, 973, 1085, 1390, 1643, 1855, 1946, 2170, 3286, 3710, 4309, 4865, 7367, 8215, 8618, 9730, 11501, 14734, 16430, 21545, 23002, 30163, 36835, 43090, 51569, 57505, 60326, 73670, 103138, 115010, 150815, 228377, 257845, 301630, 456754, 515690, 1141885, 1598639, 2283770, 3197278, 7993195, 15986390]

約数ペア:

[(1, 15986390), (2, 7993195), (5, 3197278), (7, 2283770), (10, 1598639), (14, 1141885), (31, 515690), (35, 456754), (53, 301630), (62, 257845), (70, 228377), (106, 150815), (139, 115010), (155, 103138), (217, 73670), (265, 60326), (278, 57505), (310, 51569), (371, 43090), (434, 36835), (530, 30163), (695, 23002), (742, 21545), (973, 16430), (1085, 14734), (1390, 11501), (1643, 9730), (1855, 8618), (1946, 8215), (2170, 7367), (3286, 4865), (3710, 4309)]