20414940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3739}}^1$

素因数の和:3771

約数の個数: 96

約数和(自身を含む): 70371840

約数和(自身を除く): 49956900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3739, 5460, 7478, 11217, 14956, 18695, 22434, 26173, 37390, 44868, 48607, 52346, 56085, 74780, 78519, 97214, 104692, 112170, 130865, 145821, 157038, 194428, 224340, 243035, 261730, 291642, 314076, 340249, 392595, 486070, 523460, 583284, 680498, 729105, 785190, 972140, 1020747, 1360996, 1458210, 1570380, 1701245, 2041494, 2916420, 3402490, 4082988, 5103735, 6804980, 10207470, 20414940]

約数ペア:

[(1, 20414940), (2, 10207470), (3, 6804980), (4, 5103735), (5, 4082988), (6, 3402490), (7, 2916420), (10, 2041494), (12, 1701245), (13, 1570380), (14, 1458210), (15, 1360996), (20, 1020747), (21, 972140), (26, 785190), (28, 729105), (30, 680498), (35, 583284), (39, 523460), (42, 486070), (52, 392595), (60, 340249), (65, 314076), (70, 291642), (78, 261730), (84, 243035), (91, 224340), (105, 194428), (130, 157038), (140, 145821), (156, 130865), (182, 112170), (195, 104692), (210, 97214), (260, 78519), (273, 74780), (364, 56085), (390, 52346), (420, 48607), (455, 44868), (546, 37390), (780, 26173), (910, 22434), (1092, 18695), (1365, 14956), (1820, 11217), (2730, 7478), (3739, 5460)]