238285840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1$

素因数の和:465

約数の個数: 160

約数和(自身を含む): 649958400

約数和(自身を除く): 411672560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 152, 155, 190, 208, 247, 248, 260, 304, 310, 380, 389, 403, 494, 496, 520, 589, 620, 760, 778, 806, 988, 1040, 1178, 1235, 1240, 1520, 1556, 1612, 1945, 1976, 2015, 2356, 2470, 2480, 2945, 3112, 3224, 3890, 3952, 4030, 4712, 4940, 5057, 5890, 6224, 6448, 7391, 7657, 7780, 8060, 9424, 9880, 10114, 11780, 12059, 14782, 15314, 15560, 16120, 19760, 20228, 23560, 24118, 25285, 29564, 30628, 31120, 32240, 36955, 38285, 40456, 47120, 48236, 50570, 59128, 60295, 61256, 73910, 76570, 80912, 96083, 96472, 101140, 118256, 120590, 122512, 147820, 153140, 156767, 192166, 192944, 202280, 229121, 241180, 295640, 306280, 313534, 384332, 404560, 458242, 480415, 482360, 591280, 612560, 627068, 768664, 783835, 916484, 960830, 964720, 1145605, 1254136, 1537328, 1567670, 1832968, 1921660, 2291210, 2508272, 2978573, 3135340, 3665936, 3843320, 4582420, 5957146, 6270680, 7686640, 9164840, 11914292, 12541360, 14892865, 18329680, 23828584, 29785730, 47657168, 59571460, 119142920, 238285840]

約数ペア:

[(1, 238285840), (2, 119142920), (4, 59571460), (5, 47657168), (8, 29785730), (10, 23828584), (13, 18329680), (16, 14892865), (19, 12541360), (20, 11914292), (26, 9164840), (31, 7686640), (38, 6270680), (40, 5957146), (52, 4582420), (62, 3843320), (65, 3665936), (76, 3135340), (80, 2978573), (95, 2508272), (104, 2291210), (124, 1921660), (130, 1832968), (152, 1567670), (155, 1537328), (190, 1254136), (208, 1145605), (247, 964720), (248, 960830), (260, 916484), (304, 783835), (310, 768664), (380, 627068), (389, 612560), (403, 591280), (494, 482360), (496, 480415), (520, 458242), (589, 404560), (620, 384332), (760, 313534), (778, 306280), (806, 295640), (988, 241180), (1040, 229121), (1178, 202280), (1235, 192944), (1240, 192166), (1520, 156767), (1556, 153140), (1612, 147820), (1945, 122512), (1976, 120590), (2015, 118256), (2356, 101140), (2470, 96472), (2480, 96083), (2945, 80912), (3112, 76570), (3224, 73910), (3890, 61256), (3952, 60295), (4030, 59128), (4712, 50570), (4940, 48236), (5057, 47120), (5890, 40456), (6224, 38285), (6448, 36955), (7391, 32240), (7657, 31120), (7780, 30628), (8060, 29564), (9424, 25285), (9880, 24118), (10114, 23560), (11780, 20228), (12059, 19760), (14782, 16120), (15314, 15560)]