128450640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1657}}^1$

素因数の和:1709

約数の個数: 160

約数和(自身を含む): 444078720

約数和(自身を除く): 315628080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 19, 20, 24, 30, 34, 38, 40, 48, 51, 57, 60, 68, 76, 80, 85, 95, 102, 114, 120, 136, 152, 170, 190, 204, 228, 240, 255, 272, 285, 304, 323, 340, 380, 408, 456, 510, 570, 646, 680, 760, 816, 912, 969, 1020, 1140, 1292, 1360, 1520, 1615, 1657, 1938, 2040, 2280, 2584, 3230, 3314, 3876, 4080, 4560, 4845, 4971, 5168, 6460, 6628, 7752, 8285, 9690, 9942, 12920, 13256, 15504, 16570, 19380, 19884, 24855, 25840, 26512, 28169, 31483, 33140, 38760, 39768, 49710, 56338, 62966, 66280, 77520, 79536, 84507, 94449, 99420, 112676, 125932, 132560, 140845, 157415, 169014, 188898, 198840, 225352, 251864, 281690, 314830, 338028, 377796, 397680, 422535, 450704, 472245, 503728, 535211, 563380, 629660, 676056, 755592, 845070, 944490, 1070422, 1126760, 1259320, 1352112, 1511184, 1605633, 1690140, 1888980, 2140844, 2253520, 2518640, 2676055, 3211266, 3380280, 3777960, 4281688, 5352110, 6422532, 6760560, 7555920, 8028165, 8563376, 10704220, 12845064, 16056330, 21408440, 25690128, 32112660, 42816880, 64225320, 128450640]

約数ペア:

[(1, 128450640), (2, 64225320), (3, 42816880), (4, 32112660), (5, 25690128), (6, 21408440), (8, 16056330), (10, 12845064), (12, 10704220), (15, 8563376), (16, 8028165), (17, 7555920), (19, 6760560), (20, 6422532), (24, 5352110), (30, 4281688), (34, 3777960), (38, 3380280), (40, 3211266), (48, 2676055), (51, 2518640), (57, 2253520), (60, 2140844), (68, 1888980), (76, 1690140), (80, 1605633), (85, 1511184), (95, 1352112), (102, 1259320), (114, 1126760), (120, 1070422), (136, 944490), (152, 845070), (170, 755592), (190, 676056), (204, 629660), (228, 563380), (240, 535211), (255, 503728), (272, 472245), (285, 450704), (304, 422535), (323, 397680), (340, 377796), (380, 338028), (408, 314830), (456, 281690), (510, 251864), (570, 225352), (646, 198840), (680, 188898), (760, 169014), (816, 157415), (912, 140845), (969, 132560), (1020, 125932), (1140, 112676), (1292, 99420), (1360, 94449), (1520, 84507), (1615, 79536), (1657, 77520), (1938, 66280), (2040, 62966), (2280, 56338), (2584, 49710), (3230, 39768), (3314, 38760), (3876, 33140), (4080, 31483), (4560, 28169), (4845, 26512), (4971, 25840), (5168, 24855), (6460, 19884), (6628, 19380), (7752, 16570), (8285, 15504), (9690, 13256), (9942, 12920)]