1997016860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{971}}^1$

素因数の和:1283

約数の個数: 96

約数和(自身を含む): 4655895552

約数和(自身を除く): 2658878692

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 263, 340, 391, 460, 526, 782, 971, 1052, 1315, 1564, 1942, 1955, 2630, 3884, 3910, 4471, 4855, 5260, 6049, 7820, 8942, 9710, 12098, 16507, 17884, 19420, 22333, 22355, 24196, 30245, 33014, 44666, 44710, 60490, 66028, 82535, 89332, 89420, 102833, 111665, 120980, 165070, 205666, 223330, 255373, 330140, 379661, 411332, 446660, 510746, 514165, 759322, 1021492, 1028330, 1276865, 1518644, 1898305, 2056660, 2553730, 3796610, 4341341, 5107460, 5873579, 7593220, 8682682, 11747158, 17365364, 21706705, 23494316, 29367895, 43413410, 58735790, 86826820, 99850843, 117471580, 199701686, 399403372, 499254215, 998508430, 1997016860]

約数ペア:

[(1, 1997016860), (2, 998508430), (4, 499254215), (5, 399403372), (10, 199701686), (17, 117471580), (20, 99850843), (23, 86826820), (34, 58735790), (46, 43413410), (68, 29367895), (85, 23494316), (92, 21706705), (115, 17365364), (170, 11747158), (230, 8682682), (263, 7593220), (340, 5873579), (391, 5107460), (460, 4341341), (526, 3796610), (782, 2553730), (971, 2056660), (1052, 1898305), (1315, 1518644), (1564, 1276865), (1942, 1028330), (1955, 1021492), (2630, 759322), (3884, 514165), (3910, 510746), (4471, 446660), (4855, 411332), (5260, 379661), (6049, 330140), (7820, 255373), (8942, 223330), (9710, 205666), (12098, 165070), (16507, 120980), (17884, 111665), (19420, 102833), (22333, 89420), (22355, 89332), (24196, 82535), (30245, 66028), (33014, 60490), (44666, 44710)]