1640598988

素因数分解:

$2^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{3803}}^1$

素因数の和:3923

約数の個数: 72

約数和(自身を含む): 3497001984

約数和(自身を除く): 1856402996

約数列:

[1, 2, 4, 7, 14, 28, 31, 49, 62, 71, 98, 124, 142, 196, 217, 284, 434, 497, 868, 994, 1519, 1988, 2201, 3038, 3479, 3803, 4402, 6076, 6958, 7606, 8804, 13916, 15212, 15407, 26621, 30814, 53242, 61628, 106484, 107849, 117893, 186347, 215698, 235786, 270013, 372694, 431396, 471572, 540026, 745388, 825251, 1080052, 1650502, 1890091, 3301004, 3780182, 5776757, 7560364, 8370403, 11553514, 13230637, 16740806, 23107028, 26461274, 33481612, 52922548, 58592821, 117185642, 234371284, 410149747, 820299494, 1640598988]

約数ペア:

[(1, 1640598988), (2, 820299494), (4, 410149747), (7, 234371284), (14, 117185642), (28, 58592821), (31, 52922548), (49, 33481612), (62, 26461274), (71, 23107028), (98, 16740806), (124, 13230637), (142, 11553514), (196, 8370403), (217, 7560364), (284, 5776757), (434, 3780182), (497, 3301004), (868, 1890091), (994, 1650502), (1519, 1080052), (1988, 825251), (2201, 745388), (3038, 540026), (3479, 471572), (3803, 431396), (4402, 372694), (6076, 270013), (6958, 235786), (7606, 215698), (8804, 186347), (13916, 117893), (15212, 107849), (15407, 106484), (26621, 61628), (30814, 53242)]