308140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:118

約数の個数: 48

約数和(自身を含む): 774144

約数和(自身を除く): 466004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 71, 124, 140, 142, 155, 217, 284, 310, 355, 434, 497, 620, 710, 868, 994, 1085, 1420, 1988, 2170, 2201, 2485, 4340, 4402, 4970, 8804, 9940, 11005, 15407, 22010, 30814, 44020, 61628, 77035, 154070, 308140]

約数ペア:

[(1, 308140), (2, 154070), (4, 77035), (5, 61628), (7, 44020), (10, 30814), (14, 22010), (20, 15407), (28, 11005), (31, 9940), (35, 8804), (62, 4970), (70, 4402), (71, 4340), (124, 2485), (140, 2201), (142, 2170), (155, 1988), (217, 1420), (284, 1085), (310, 994), (355, 868), (434, 710), (497, 620)]