81911970

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5653}}^1$

素因数の和:5696

約数の個数: 96

約数和(自身を含む): 254022912

約数和(自身を除く): 172110942

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 63, 69, 70, 90, 105, 115, 126, 138, 161, 207, 210, 230, 315, 322, 345, 414, 483, 630, 690, 805, 966, 1035, 1449, 1610, 2070, 2415, 2898, 4830, 5653, 7245, 11306, 14490, 16959, 28265, 33918, 39571, 50877, 56530, 79142, 84795, 101754, 118713, 130019, 169590, 197855, 237426, 254385, 260038, 356139, 390057, 395710, 508770, 593565, 650095, 712278, 780114, 910133, 1170171, 1187130, 1300190, 1780695, 1820266, 1950285, 2340342, 2730399, 3561390, 3900570, 4550665, 5460798, 5850855, 8191197, 9101330, 11701710, 13651995, 16382394, 27303990, 40955985, 81911970]

約数ペア:

[(1, 81911970), (2, 40955985), (3, 27303990), (5, 16382394), (6, 13651995), (7, 11701710), (9, 9101330), (10, 8191197), (14, 5850855), (15, 5460798), (18, 4550665), (21, 3900570), (23, 3561390), (30, 2730399), (35, 2340342), (42, 1950285), (45, 1820266), (46, 1780695), (63, 1300190), (69, 1187130), (70, 1170171), (90, 910133), (105, 780114), (115, 712278), (126, 650095), (138, 593565), (161, 508770), (207, 395710), (210, 390057), (230, 356139), (315, 260038), (322, 254385), (345, 237426), (414, 197855), (483, 169590), (630, 130019), (690, 118713), (805, 101754), (966, 84795), (1035, 79142), (1449, 56530), (1610, 50877), (2070, 39571), (2415, 33918), (2898, 28265), (4830, 16959), (5653, 14490), (7245, 11306)]