81883900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{983}}^1$

素因数の和:1028

約数の個数: 108

約数和(自身を含む): 219079728

約数和(自身を除く): 137195828

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 25, 28, 34, 35, 49, 50, 68, 70, 85, 98, 100, 119, 140, 170, 175, 196, 238, 245, 340, 350, 425, 476, 490, 595, 700, 833, 850, 980, 983, 1190, 1225, 1666, 1700, 1966, 2380, 2450, 2975, 3332, 3932, 4165, 4900, 4915, 5950, 6881, 8330, 9830, 11900, 13762, 16660, 16711, 19660, 20825, 24575, 27524, 33422, 34405, 41650, 48167, 49150, 66844, 68810, 83300, 83555, 96334, 98300, 116977, 137620, 167110, 172025, 192668, 233954, 240835, 334220, 344050, 417775, 467908, 481670, 584885, 688100, 818839, 835550, 963340, 1169770, 1204175, 1637678, 1671100, 2339540, 2408350, 2924425, 3275356, 4094195, 4816700, 5848850, 8188390, 11697700, 16376780, 20470975, 40941950, 81883900]

約数ペア:

[(1, 81883900), (2, 40941950), (4, 20470975), (5, 16376780), (7, 11697700), (10, 8188390), (14, 5848850), (17, 4816700), (20, 4094195), (25, 3275356), (28, 2924425), (34, 2408350), (35, 2339540), (49, 1671100), (50, 1637678), (68, 1204175), (70, 1169770), (85, 963340), (98, 835550), (100, 818839), (119, 688100), (140, 584885), (170, 481670), (175, 467908), (196, 417775), (238, 344050), (245, 334220), (340, 240835), (350, 233954), (425, 192668), (476, 172025), (490, 167110), (595, 137620), (700, 116977), (833, 98300), (850, 96334), (980, 83555), (983, 83300), (1190, 68810), (1225, 66844), (1666, 49150), (1700, 48167), (1966, 41650), (2380, 34405), (2450, 33422), (2975, 27524), (3332, 24575), (3932, 20825), (4165, 19660), (4900, 16711), (4915, 16660), (5950, 13762), (6881, 11900), (8330, 9830)]