28941900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 92889888

約数和(自身を除く): 63947988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 41, 50, 52, 60, 65, 75, 78, 82, 100, 123, 130, 150, 156, 164, 181, 195, 205, 246, 260, 300, 325, 362, 390, 410, 492, 533, 543, 615, 650, 724, 780, 820, 905, 975, 1025, 1066, 1086, 1230, 1300, 1599, 1810, 1950, 2050, 2132, 2172, 2353, 2460, 2665, 2715, 3075, 3198, 3620, 3900, 4100, 4525, 4706, 5330, 5430, 6150, 6396, 7059, 7421, 7995, 9050, 9412, 10660, 10860, 11765, 12300, 13325, 13575, 14118, 14842, 15990, 18100, 22263, 23530, 26650, 27150, 28236, 29684, 31980, 35295, 37105, 39975, 44526, 47060, 53300, 54300, 58825, 70590, 74210, 79950, 89052, 96473, 111315, 117650, 141180, 148420, 159900, 176475, 185525, 192946, 222630, 235300, 289419, 352950, 371050, 385892, 445260, 482365, 556575, 578838, 705900, 742100, 964730, 1113150, 1157676, 1447095, 1929460, 2226300, 2411825, 2894190, 4823650, 5788380, 7235475, 9647300, 14470950, 28941900]

約数ペア:

[(1, 28941900), (2, 14470950), (3, 9647300), (4, 7235475), (5, 5788380), (6, 4823650), (10, 2894190), (12, 2411825), (13, 2226300), (15, 1929460), (20, 1447095), (25, 1157676), (26, 1113150), (30, 964730), (39, 742100), (41, 705900), (50, 578838), (52, 556575), (60, 482365), (65, 445260), (75, 385892), (78, 371050), (82, 352950), (100, 289419), (123, 235300), (130, 222630), (150, 192946), (156, 185525), (164, 176475), (181, 159900), (195, 148420), (205, 141180), (246, 117650), (260, 111315), (300, 96473), (325, 89052), (362, 79950), (390, 74210), (410, 70590), (492, 58825), (533, 54300), (543, 53300), (615, 47060), (650, 44526), (724, 39975), (780, 37105), (820, 35295), (905, 31980), (975, 29684), (1025, 28236), (1066, 27150), (1086, 26650), (1230, 23530), (1300, 22263), (1599, 18100), (1810, 15990), (1950, 14842), (2050, 14118), (2132, 13575), (2172, 13325), (2353, 12300), (2460, 11765), (2665, 10860), (2715, 10660), (3075, 9412), (3198, 9050), (3620, 7995), (3900, 7421), (4100, 7059), (4525, 6396), (4706, 6150), (5330, 5430)]