1990403730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{3159371}}^1$

素因数の和:3159391

約数の個数: 48

約数和(自身を含む): 5914344384

約数和(自身を除く): 3923940654

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 3159371, 6318742, 9478113, 15796855, 18956226, 22115597, 28434339, 31593710, 44231194, 47390565, 56868678, 66346791, 94781130, 110577985, 132693582, 142171695, 199040373, 221155970, 284343390, 331733955, 398080746, 663467910, 995201865, 1990403730]

約数ペア:

[(1, 1990403730), (2, 995201865), (3, 663467910), (5, 398080746), (6, 331733955), (7, 284343390), (9, 221155970), (10, 199040373), (14, 142171695), (15, 132693582), (18, 110577985), (21, 94781130), (30, 66346791), (35, 56868678), (42, 47390565), (45, 44231194), (63, 31593710), (70, 28434339), (90, 22115597), (105, 18956226), (126, 15796855), (210, 9478113), (315, 6318742), (630, 3159371)]