204575960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 514149120

約数和(自身を除く): 309573160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 47, 68, 74, 85, 94, 136, 148, 170, 173, 185, 188, 235, 296, 340, 346, 370, 376, 470, 629, 680, 692, 740, 799, 865, 940, 1258, 1384, 1480, 1598, 1730, 1739, 1880, 2516, 2941, 3145, 3196, 3460, 3478, 3995, 5032, 5882, 6290, 6392, 6401, 6920, 6956, 7990, 8131, 8695, 11764, 12580, 12802, 13912, 14705, 15980, 16262, 17390, 23528, 25160, 25604, 29410, 29563, 31960, 32005, 32524, 34780, 40655, 51208, 58820, 59126, 64010, 65048, 69560, 81310, 108817, 117640, 118252, 128020, 138227, 147815, 162620, 217634, 236504, 256040, 276454, 295630, 300847, 325240, 435268, 544085, 552908, 591260, 601694, 691135, 870536, 1088170, 1105816, 1182520, 1203388, 1382270, 1504235, 2176340, 2406776, 2764540, 3008470, 4352680, 5114399, 5529080, 6016940, 10228798, 12033880, 20457596, 25571995, 40915192, 51143990, 102287980, 204575960]

約数ペア:

[(1, 204575960), (2, 102287980), (4, 51143990), (5, 40915192), (8, 25571995), (10, 20457596), (17, 12033880), (20, 10228798), (34, 6016940), (37, 5529080), (40, 5114399), (47, 4352680), (68, 3008470), (74, 2764540), (85, 2406776), (94, 2176340), (136, 1504235), (148, 1382270), (170, 1203388), (173, 1182520), (185, 1105816), (188, 1088170), (235, 870536), (296, 691135), (340, 601694), (346, 591260), (370, 552908), (376, 544085), (470, 435268), (629, 325240), (680, 300847), (692, 295630), (740, 276454), (799, 256040), (865, 236504), (940, 217634), (1258, 162620), (1384, 147815), (1480, 138227), (1598, 128020), (1730, 118252), (1739, 117640), (1880, 108817), (2516, 81310), (2941, 69560), (3145, 65048), (3196, 64010), (3460, 59126), (3478, 58820), (3995, 51208), (5032, 40655), (5882, 34780), (6290, 32524), (6392, 32005), (6401, 31960), (6920, 29563), (6956, 29410), (7990, 25604), (8131, 25160), (8695, 23528), (11764, 17390), (12580, 16262), (12802, 15980), (13912, 14705)]