20015970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3019}}^1$

素因数の和:3059

約数の個数: 64

約数和(自身を含む): 54794880

約数和(自身を除く): 34778910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3019, 3315, 6038, 6630, 9057, 15095, 18114, 30190, 39247, 45285, 51323, 78494, 90570, 102646, 117741, 153969, 196235, 235482, 256615, 307938, 392470, 513230, 588705, 667199, 769845, 1177410, 1334398, 1539690, 2001597, 3335995, 4003194, 6671990, 10007985, 20015970]

約数ペア:

[(1, 20015970), (2, 10007985), (3, 6671990), (5, 4003194), (6, 3335995), (10, 2001597), (13, 1539690), (15, 1334398), (17, 1177410), (26, 769845), (30, 667199), (34, 588705), (39, 513230), (51, 392470), (65, 307938), (78, 256615), (85, 235482), (102, 196235), (130, 153969), (170, 117741), (195, 102646), (221, 90570), (255, 78494), (390, 51323), (442, 45285), (510, 39247), (663, 30190), (1105, 18114), (1326, 15095), (2210, 9057), (3019, 6630), (3315, 6038)]