19742320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 50746752

約数和(自身を除く): 31004432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 463, 520, 533, 656, 820, 926, 1040, 1066, 1640, 1852, 2132, 2315, 2665, 3280, 3704, 4264, 4630, 5330, 6019, 7408, 8528, 9260, 10660, 12038, 18520, 18983, 21320, 24076, 30095, 37040, 37966, 42640, 48152, 60190, 75932, 94915, 96304, 120380, 151864, 189830, 240760, 246779, 303728, 379660, 481520, 493558, 759320, 987116, 1233895, 1518640, 1974232, 2467790, 3948464, 4935580, 9871160, 19742320]

約数ペア:

[(1, 19742320), (2, 9871160), (4, 4935580), (5, 3948464), (8, 2467790), (10, 1974232), (13, 1518640), (16, 1233895), (20, 987116), (26, 759320), (40, 493558), (41, 481520), (52, 379660), (65, 303728), (80, 246779), (82, 240760), (104, 189830), (130, 151864), (164, 120380), (205, 96304), (208, 94915), (260, 75932), (328, 60190), (410, 48152), (463, 42640), (520, 37966), (533, 37040), (656, 30095), (820, 24076), (926, 21320), (1040, 18983), (1066, 18520), (1640, 12038), (1852, 10660), (2132, 9260), (2315, 8528), (2665, 7408), (3280, 6019), (3704, 5330), (4264, 4630)]