19762140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4639}}^1$

素因数の和:4722

約数の個数: 48

約数和(自身を含む): 56125440

約数和(自身を除く): 36363300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4639, 9278, 13917, 18556, 23195, 27834, 46390, 55668, 69585, 92780, 139170, 278340, 329369, 658738, 988107, 1317476, 1646845, 1976214, 3293690, 3952428, 4940535, 6587380, 9881070, 19762140]

約数ペア:

[(1, 19762140), (2, 9881070), (3, 6587380), (4, 4940535), (5, 3952428), (6, 3293690), (10, 1976214), (12, 1646845), (15, 1317476), (20, 988107), (30, 658738), (60, 329369), (71, 278340), (142, 139170), (213, 92780), (284, 69585), (355, 55668), (426, 46390), (710, 27834), (852, 23195), (1065, 18556), (1420, 13917), (2130, 9278), (4260, 4639)]