42640000

素因数分解:

$2^7\times 5^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1$

素因数の和:88

約数の個数: 160

約数和(自身を含む): 117103140

約数和(自身を除く): 74463140

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 41, 50, 52, 64, 65, 80, 82, 100, 104, 125, 128, 130, 160, 164, 200, 205, 208, 250, 260, 320, 325, 328, 400, 410, 416, 500, 520, 533, 625, 640, 650, 656, 800, 820, 832, 1000, 1025, 1040, 1066, 1250, 1300, 1312, 1600, 1625, 1640, 1664, 2000, 2050, 2080, 2132, 2500, 2600, 2624, 2665, 3200, 3250, 3280, 4000, 4100, 4160, 4264, 5000, 5125, 5200, 5248, 5330, 6500, 6560, 8000, 8125, 8200, 8320, 8528, 10000, 10250, 10400, 10660, 13000, 13120, 13325, 16000, 16250, 16400, 17056, 20000, 20500, 20800, 21320, 25625, 26000, 26240, 26650, 32500, 32800, 34112, 40000, 41000, 41600, 42640, 51250, 52000, 53300, 65000, 65600, 66625, 68224, 80000, 82000, 85280, 102500, 104000, 106600, 130000, 131200, 133250, 164000, 170560, 205000, 208000, 213200, 260000, 266500, 328000, 333125, 341120, 410000, 426400, 520000, 533000, 656000, 666250, 820000, 852800, 1040000, 1066000, 1332500, 1640000, 1705600, 2132000, 2665000, 3280000, 4264000, 5330000, 8528000, 10660000, 21320000, 42640000]

約数ペア:

[(1, 42640000), (2, 21320000), (4, 10660000), (5, 8528000), (8, 5330000), (10, 4264000), (13, 3280000), (16, 2665000), (20, 2132000), (25, 1705600), (26, 1640000), (32, 1332500), (40, 1066000), (41, 1040000), (50, 852800), (52, 820000), (64, 666250), (65, 656000), (80, 533000), (82, 520000), (100, 426400), (104, 410000), (125, 341120), (128, 333125), (130, 328000), (160, 266500), (164, 260000), (200, 213200), (205, 208000), (208, 205000), (250, 170560), (260, 164000), (320, 133250), (325, 131200), (328, 130000), (400, 106600), (410, 104000), (416, 102500), (500, 85280), (520, 82000), (533, 80000), (625, 68224), (640, 66625), (650, 65600), (656, 65000), (800, 53300), (820, 52000), (832, 51250), (1000, 42640), (1025, 41600), (1040, 41000), (1066, 40000), (1250, 34112), (1300, 32800), (1312, 32500), (1600, 26650), (1625, 26240), (1640, 26000), (1664, 25625), (2000, 21320), (2050, 20800), (2080, 20500), (2132, 20000), (2500, 17056), (2600, 16400), (2624, 16250), (2665, 16000), (3200, 13325), (3250, 13120), (3280, 13000), (4000, 10660), (4100, 10400), (4160, 10250), (4264, 10000), (5000, 8528), (5125, 8320), (5200, 8200), (5248, 8125), (5330, 8000), (6500, 6560)]