641935320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{2621}}^1$

素因数の和:2805

約数の個数: 128

約数和(自身を含む): 2087951040

約数和(自身を除く): 1446015720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 157, 195, 260, 312, 314, 390, 471, 520, 628, 780, 785, 942, 1256, 1560, 1570, 1884, 2041, 2355, 2621, 3140, 3768, 4082, 4710, 5242, 6123, 6280, 7863, 8164, 9420, 10205, 10484, 12246, 13105, 15726, 16328, 18840, 20410, 20968, 24492, 26210, 30615, 31452, 34073, 39315, 40820, 48984, 52420, 61230, 62904, 68146, 78630, 81640, 102219, 104840, 122460, 136292, 157260, 170365, 204438, 244920, 272584, 314520, 340730, 408876, 411497, 511095, 681460, 817752, 822994, 1022190, 1234491, 1362920, 1645988, 2044380, 2057485, 2468982, 3291976, 4088760, 4114970, 4937964, 5349461, 6172455, 8229940, 9875928, 10698922, 12344910, 16048383, 16459880, 21397844, 24689820, 26747305, 32096766, 42795688, 49379640, 53494610, 64193532, 80241915, 106989220, 128387064, 160483830, 213978440, 320967660, 641935320]

約数ペア:

[(1, 641935320), (2, 320967660), (3, 213978440), (4, 160483830), (5, 128387064), (6, 106989220), (8, 80241915), (10, 64193532), (12, 53494610), (13, 49379640), (15, 42795688), (20, 32096766), (24, 26747305), (26, 24689820), (30, 21397844), (39, 16459880), (40, 16048383), (52, 12344910), (60, 10698922), (65, 9875928), (78, 8229940), (104, 6172455), (120, 5349461), (130, 4937964), (156, 4114970), (157, 4088760), (195, 3291976), (260, 2468982), (312, 2057485), (314, 2044380), (390, 1645988), (471, 1362920), (520, 1234491), (628, 1022190), (780, 822994), (785, 817752), (942, 681460), (1256, 511095), (1560, 411497), (1570, 408876), (1884, 340730), (2041, 314520), (2355, 272584), (2621, 244920), (3140, 204438), (3768, 170365), (4082, 157260), (4710, 136292), (5242, 122460), (6123, 104840), (6280, 102219), (7863, 81640), (8164, 78630), (9420, 68146), (10205, 62904), (10484, 61230), (12246, 52420), (13105, 48984), (15726, 40820), (16328, 39315), (18840, 34073), (20410, 31452), (20968, 30615), (24492, 26210)]