1639969648

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{691}}^1$

素因数の和:966

約数の個数: 80

約数和(自身を含む): 3456346240

約数和(自身を除く): 1816376592

約数列:

[1, 2, 4, 8, 16, 19, 37, 38, 74, 76, 148, 152, 211, 296, 304, 422, 592, 691, 703, 844, 1382, 1406, 1688, 2764, 2812, 3376, 4009, 5528, 5624, 7807, 8018, 11056, 11248, 13129, 15614, 16036, 25567, 26258, 31228, 32072, 51134, 52516, 62456, 64144, 102268, 105032, 124912, 145801, 148333, 204536, 210064, 291602, 296666, 409072, 485773, 583204, 593332, 971546, 1166408, 1186664, 1943092, 2332816, 2373328, 2770219, 3886184, 5394637, 5540438, 7772368, 10789274, 11080876, 21578548, 22161752, 43157096, 44323504, 86314192, 102498103, 204996206, 409992412, 819984824, 1639969648]

約数ペア:

[(1, 1639969648), (2, 819984824), (4, 409992412), (8, 204996206), (16, 102498103), (19, 86314192), (37, 44323504), (38, 43157096), (74, 22161752), (76, 21578548), (148, 11080876), (152, 10789274), (211, 7772368), (296, 5540438), (304, 5394637), (422, 3886184), (592, 2770219), (691, 2373328), (703, 2332816), (844, 1943092), (1382, 1186664), (1406, 1166408), (1688, 971546), (2764, 593332), (2812, 583204), (3376, 485773), (4009, 409072), (5528, 296666), (5624, 291602), (7807, 210064), (8018, 204536), (11056, 148333), (11248, 145801), (13129, 124912), (15614, 105032), (16036, 102268), (25567, 64144), (26258, 62456), (31228, 52516), (32072, 51134)]