155207960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1$

素因数の和:381

約数の個数: 128

約数和(自身を含む): 400075200

約数和(自身を除く): 244867240

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 41, 68, 76, 82, 85, 95, 136, 152, 164, 170, 190, 205, 293, 323, 328, 340, 380, 410, 586, 646, 680, 697, 760, 779, 820, 1172, 1292, 1394, 1465, 1558, 1615, 1640, 2344, 2584, 2788, 2930, 3116, 3230, 3485, 3895, 4981, 5567, 5576, 5860, 6232, 6460, 6970, 7790, 9962, 11134, 11720, 12013, 12920, 13243, 13940, 15580, 19924, 22268, 24026, 24905, 26486, 27835, 27880, 31160, 39848, 44536, 48052, 49810, 52972, 55670, 60065, 66215, 94639, 96104, 99620, 105944, 111340, 120130, 132430, 189278, 199240, 204221, 222680, 228247, 240260, 264860, 378556, 408442, 456494, 473195, 480520, 529720, 757112, 816884, 912988, 946390, 1021105, 1141235, 1633768, 1825976, 1892780, 2042210, 2282470, 3785560, 3880199, 4084420, 4564940, 7760398, 8168840, 9129880, 15520796, 19400995, 31041592, 38801990, 77603980, 155207960]

約数ペア:

[(1, 155207960), (2, 77603980), (4, 38801990), (5, 31041592), (8, 19400995), (10, 15520796), (17, 9129880), (19, 8168840), (20, 7760398), (34, 4564940), (38, 4084420), (40, 3880199), (41, 3785560), (68, 2282470), (76, 2042210), (82, 1892780), (85, 1825976), (95, 1633768), (136, 1141235), (152, 1021105), (164, 946390), (170, 912988), (190, 816884), (205, 757112), (293, 529720), (323, 480520), (328, 473195), (340, 456494), (380, 408442), (410, 378556), (586, 264860), (646, 240260), (680, 228247), (697, 222680), (760, 204221), (779, 199240), (820, 189278), (1172, 132430), (1292, 120130), (1394, 111340), (1465, 105944), (1558, 99620), (1615, 96104), (1640, 94639), (2344, 66215), (2584, 60065), (2788, 55670), (2930, 52972), (3116, 49810), (3230, 48052), (3485, 44536), (3895, 39848), (4981, 31160), (5567, 27880), (5576, 27835), (5860, 26486), (6232, 24905), (6460, 24026), (6970, 22268), (7790, 19924), (9962, 15580), (11134, 13940), (11720, 13243), (12013, 12920)]