221511420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{523}}^1$

素因数の和:732

約数の個数: 144

約数和(自身を含む): 728992992

約数和(自身を除く): 507481572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 181, 195, 234, 260, 362, 390, 468, 523, 543, 585, 724, 780, 905, 1046, 1086, 1170, 1569, 1629, 1810, 2092, 2172, 2340, 2353, 2615, 2715, 3138, 3258, 3620, 4706, 4707, 5230, 5430, 6276, 6516, 6799, 7059, 7845, 8145, 9412, 9414, 10460, 10860, 11765, 13598, 14118, 15690, 16290, 18828, 20397, 21177, 23530, 23535, 27196, 28236, 31380, 32580, 33995, 35295, 40794, 42354, 47060, 47070, 61191, 67990, 70590, 81588, 84708, 94140, 94663, 101985, 105885, 122382, 135980, 141180, 189326, 203970, 211770, 244764, 283989, 305955, 378652, 407940, 423540, 473315, 567978, 611910, 851967, 946630, 1135956, 1223820, 1230619, 1419945, 1703934, 1893260, 2461238, 2839890, 3407868, 3691857, 4259835, 4922476, 5679780, 6153095, 7383714, 8519670, 11075571, 12306190, 14767428, 17039340, 18459285, 22151142, 24612380, 36918570, 44302284, 55377855, 73837140, 110755710, 221511420]

約数ペア:

[(1, 221511420), (2, 110755710), (3, 73837140), (4, 55377855), (5, 44302284), (6, 36918570), (9, 24612380), (10, 22151142), (12, 18459285), (13, 17039340), (15, 14767428), (18, 12306190), (20, 11075571), (26, 8519670), (30, 7383714), (36, 6153095), (39, 5679780), (45, 4922476), (52, 4259835), (60, 3691857), (65, 3407868), (78, 2839890), (90, 2461238), (117, 1893260), (130, 1703934), (156, 1419945), (180, 1230619), (181, 1223820), (195, 1135956), (234, 946630), (260, 851967), (362, 611910), (390, 567978), (468, 473315), (523, 423540), (543, 407940), (585, 378652), (724, 305955), (780, 283989), (905, 244764), (1046, 211770), (1086, 203970), (1170, 189326), (1569, 141180), (1629, 135980), (1810, 122382), (2092, 105885), (2172, 101985), (2340, 94663), (2353, 94140), (2615, 84708), (2715, 81588), (3138, 70590), (3258, 67990), (3620, 61191), (4706, 47070), (4707, 47060), (5230, 42354), (5430, 40794), (6276, 35295), (6516, 33995), (6799, 32580), (7059, 31380), (7845, 28236), (8145, 27196), (9412, 23535), (9414, 23530), (10460, 21177), (10860, 20397), (11765, 18828), (13598, 16290), (14118, 15690)]