17821780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 43110144

約数和(自身を除く): 25288364

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 43, 46, 53, 68, 85, 86, 92, 106, 115, 170, 172, 212, 215, 230, 265, 340, 391, 430, 460, 530, 731, 782, 860, 901, 989, 1060, 1219, 1462, 1564, 1802, 1955, 1978, 2279, 2438, 2924, 3604, 3655, 3910, 3956, 4505, 4558, 4876, 4945, 6095, 7310, 7820, 9010, 9116, 9890, 11395, 12190, 14620, 16813, 18020, 19780, 20723, 22790, 24380, 33626, 38743, 41446, 45580, 52417, 67252, 77486, 82892, 84065, 103615, 104834, 154972, 168130, 193715, 207230, 209668, 262085, 336260, 387430, 414460, 524170, 774860, 891089, 1048340, 1782178, 3564356, 4455445, 8910890, 17821780]

約数ペア:

[(1, 17821780), (2, 8910890), (4, 4455445), (5, 3564356), (10, 1782178), (17, 1048340), (20, 891089), (23, 774860), (34, 524170), (43, 414460), (46, 387430), (53, 336260), (68, 262085), (85, 209668), (86, 207230), (92, 193715), (106, 168130), (115, 154972), (170, 104834), (172, 103615), (212, 84065), (215, 82892), (230, 77486), (265, 67252), (340, 52417), (391, 45580), (430, 41446), (460, 38743), (530, 33626), (731, 24380), (782, 22790), (860, 20723), (901, 19780), (989, 18020), (1060, 16813), (1219, 14620), (1462, 12190), (1564, 11395), (1802, 9890), (1955, 9116), (1978, 9010), (2279, 7820), (2438, 7310), (2924, 6095), (3604, 4945), (3655, 4876), (3910, 4558), (3956, 4505)]