28731300

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 91869120

約数和(自身を除く): 63137820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 53, 60, 65, 75, 78, 100, 106, 130, 139, 150, 156, 159, 195, 212, 260, 265, 278, 300, 318, 325, 390, 417, 530, 556, 636, 650, 689, 695, 780, 795, 834, 975, 1060, 1300, 1325, 1378, 1390, 1590, 1668, 1807, 1950, 2067, 2085, 2650, 2756, 2780, 3180, 3445, 3475, 3614, 3900, 3975, 4134, 4170, 5300, 5421, 6890, 6950, 7228, 7367, 7950, 8268, 8340, 9035, 10335, 10425, 10842, 13780, 13900, 14734, 15900, 17225, 18070, 20670, 20850, 21684, 22101, 27105, 29468, 34450, 36140, 36835, 41340, 41700, 44202, 45175, 51675, 54210, 68900, 73670, 88404, 90350, 95771, 103350, 108420, 110505, 135525, 147340, 180700, 184175, 191542, 206700, 221010, 271050, 287313, 368350, 383084, 442020, 478855, 542100, 552525, 574626, 736700, 957710, 1105050, 1149252, 1436565, 1915420, 2210100, 2394275, 2873130, 4788550, 5746260, 7182825, 9577100, 14365650, 28731300]

約数ペア:

[(1, 28731300), (2, 14365650), (3, 9577100), (4, 7182825), (5, 5746260), (6, 4788550), (10, 2873130), (12, 2394275), (13, 2210100), (15, 1915420), (20, 1436565), (25, 1149252), (26, 1105050), (30, 957710), (39, 736700), (50, 574626), (52, 552525), (53, 542100), (60, 478855), (65, 442020), (75, 383084), (78, 368350), (100, 287313), (106, 271050), (130, 221010), (139, 206700), (150, 191542), (156, 184175), (159, 180700), (195, 147340), (212, 135525), (260, 110505), (265, 108420), (278, 103350), (300, 95771), (318, 90350), (325, 88404), (390, 73670), (417, 68900), (530, 54210), (556, 51675), (636, 45175), (650, 44202), (689, 41700), (695, 41340), (780, 36835), (795, 36140), (834, 34450), (975, 29468), (1060, 27105), (1300, 22101), (1325, 21684), (1378, 20850), (1390, 20670), (1590, 18070), (1668, 17225), (1807, 15900), (1950, 14734), (2067, 13900), (2085, 13780), (2650, 10842), (2756, 10425), (2780, 10335), (3180, 9035), (3445, 8340), (3475, 8268), (3614, 7950), (3900, 7367), (3975, 7228), (4134, 6950), (4170, 6890), (5300, 5421)]